The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

The livestream will now begin Friday at 11 p.m. EST, Dec. 19 (0400 GMT on Dec. 20), weather permitting, after rain prevented ...

The past water year, October 2024 through September 2025, brought the highest Arctic air temperatures since records began 125 ...

If you're hoping for a festive skywatching surprise, Christmas week is shaping up to be more active than usual in space. Fast ...

You can tune in to see live views of the Geminid meteor shower as it peaks overnight on Dec. 13-14, thanks to a free ...

"Ultimately, this work may help scientists better predict the impact of space weather across the solar system on longer ...

Interstellar comet 3I/ATLAS made its closest approach to Earth early on Friday, Dec. 19. While it didn't come close enough to ...

NASA's Perseverance Mars rover may soon set a record for the longest distance driven on another planet.

South Korean startup Innospace is set to attempt its first orbital launch today (Dec. 22), and you can watch the action live.

A 14%-illuminated waxing crescent moon will hang low in the southwest tonight, soon after sunset, still in Capricorn, with ...

The "Star Wars" sequel trilogy was the holy grail of Disney's Lucasfilm purchase. Fans — and numerous spin-off novels — had ...

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. Interstellar ...